KATHLEEN ANN CASTANO AGACNP-BC
NPI 1588429773
Nurse Practitioner - Acute Care in Houston, TX

Active since February 16, 2024PECOS Enrolled
6565 FANNIN ST, HOUSTON, TX 77030(713) 441-5451 Get Directions Write a Review

NPPES record last updated: April 16, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Kathleen Ann Castano Agacnp-bc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

KATHLEEN ANN CASTANO AGACNP-BC (NPI 1588429773) is an individual acute care provider in Houston, Texas, licensed in Texas (1152848) and active in the NPI registry since February 2024. She is enrolled in Medicare PECOS and maintains a secondary practice location in Houston.

NPPES Registry Identity

NPI1588429773
Entity TypeIndividualFemale
Primary Taxonomy363LA2100X
Provider Legal NameKATHLEEN ANN CASTANOCredential: AGACNP-BC
Location Address6565 FANNIN STHouston, TX 77030-2703
Mailing Address6445 Main St Ste 2600Houston, TX 77030-1502 · (713) 441-5451 · Fax (713) 791-5043
Sole ProprietorYes
Enumeration DateFebruary 16, 2024
Last NPPES UpdateApril 16, 2026
NPPES CertifiedApril 16, 2026
✔ NPI 1588429773 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Acute CarePhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LA2100X
License✔ Licensed in TX · 1152848
6565 FANNIN ST, Houston, TX 77030

Secondary Practice Location 1

Location 16411 Fannin StHouston, TX 77030-1501 · Phone (712) 704-4000

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Kathleen Ann Castano Agacnp-bc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Kathleen Castano reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Ophthalmology
6550 FANNIN ST, SUITE 447
Houston, TX 77030
  • Reassigned Medicare billing, Texas enrollment
  • 2,407 clinicians in this Medicare group
Otolaryngology
7550 GREENBRIAR DR STE 600
Houston, TX 77030
  • Reassigned Medicare billing, Texas enrollment
  • 1,579 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
33 services15 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 77030 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$90.40 typical visit price
range $58.24 – $176.98
Typical copayment $22.60 (range $14.56 – $44.24)
Most-billed visit code 99203
Established Patient
$102.71 typical visit price
range $18.60 – $143.93
Typical copayment $25.67 (range $4.65 – $35.98)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Specialist/Technologist, Pathology
6565 FANNIN ST, MS205
HOUSTON, TX 77030
Registered Nurse
6565 FANNIN ST
HOUSTON, TX 77030
Anesthesiology
6565 FANNIN ST
HOUSTON, TX 77030
Pathology (Anatomic Pathology & Clinical Pathology)
6565 FANNIN ST
HOUSTON, TX 77030
Internal Medicine (Nephrology)
6565 FANNIN ST, FONDREN 270
HOUSTON, TX 77030
Nurse Practitioner (Acute Care)
6565 FANNIN ST
HOUSTON, TX 77030
Anesthesiology
6565 FANNIN ST
HOUSTON, TX 77030
Hospitalist
6565 FANNIN ST
HOUSTON, TX 77030

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Kathleen Castano's NPI number?

The NPI number for Kathleen Castano is 1588429773. It was assigned to this individual provider in the NPPES registry on February 16, 2024.

Where is Kathleen Castano located?

Kathleen Castano practices at 6565 Fannin St, Houston, TX 77030. The listed phone number is (713) 441-5451.

What is Kathleen Castano's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.

Is Kathleen Castano enrolled in Medicare?

Yes. Kathleen Castano is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Kathleen Castano's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Kathleen Castano reassigns Medicare benefits to 2 organizations: Tmh Physician Associates PLLC (Houston, TX) and Houston Methodist Specialty Physicians (Houston, TX). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Kathleen Castano's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Kathleen Castano was last updated on April 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.